172044527 has 4 divisors (see below), whose sum is σ = 173357976. Its totient is φ = 170731080.

The previous prime is 172044517. The next prime is 172044533. The reversal of 172044527 is 725440271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 725440271 = 2017 ⋅359663.

It is a cyclic number.

It is not a de Polignac number, because 172044527 - 2¹² = 172040431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172044493 and 172044502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172044517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656528 + ... + 656789.

It is an arithmetic number, because the mean of its divisors is an integer number (43339494).

Almost surely, 2^172044527 is an apocalyptic number.

172044527 is a deficient number, since it is larger than the sum of its proper divisors (1313449).

172044527 is a wasteful number, since it uses less digits than its factorization.

172044527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313448.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 172044527 is about 13116.5745147123. The cubic root of 172044527 is about 556.1777624157.

Adding to 172044527 its reverse (725440271), we get a palindrome (897484798).

The spelling of 172044527 in words is "one hundred seventy-two million, forty-four thousand, five hundred twenty-seven".